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Three consecutive whole numbers add up to 84. Find the largest of these numbers.

Competition practiceNumber System, HCF & LCM

A27
B29
C28
D30

Step-by-Step Solution

Let the middle number be

x

, so

(x - 1) + x + (x + 1) = 3 x = 84

, giving

x = 28

. The largest number is

x + 1 = 29

.

Answer: B) 29

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